An air conditioner is available as an optional extra.
Source: tatoeba (326878)
Optional
/ˈɒp.ʃə.nəl/
Synonyms for "optional" (101 found)
Ranked by relevance and common usage.
Closest matches (21)
Adjective(11 words)
adjunctiveadvisory reportdiscardablediscretionarydiscretionary projectdispensableelectiveelective courseelective subjectelective subjectsextra subjects
Adjective(1 words)
Noun(2 words)
elective curriculumelective surgery
Strong matches (30)
Adjective(20 words)
extracurricular clubfacultativeidle activityignorableinessentialleavablenon curricular contentnon essential tagnon instructional resourcesnonbindingnoncrucialnoncurricularnonessentialnonessential itemnonessential materialnonessential variablenonmandatorynonrestrictivenonstandard speciesoccasional
Noun(5 words)
free choice itemno additionalnonessential partnoninstructional contentnonrestrictive term
Related words (50)
Adjective(14 words)
occasional instructionomissibleoptional readingoptional topicperipheral modulepressing issueside topicsupplementalunobligatedvoluntaryvoluntary servicevoluntary service opportunitiesvoluntary tearingwilling
offeredprofferedself-actingself-activeself-determinedself-determiningspontaneousunaskedunbesoughtunbiddenuncalled foruncalled-foruncoerceduncompelledunforceduninfluenceduninvitedunpressuredunpromptedunrequested
Show 7 more words
Noun(8 words)
parentheticalsecretly optionalvoluntary actionvoluntary basisvoluntary donationvoluntary guidelinesvolunteer projectvolunteer term
Verb(1 words)
set aside
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
More general
2 entriesMore specific
4 entrieselective courseoptional assignmentoptional fieldoptional section
Collocations
5 entriesoptional activityoptional assignmentoptional courseoptional fieldoptional reading
Inflections
2 entriesmore optionalmost optional
Derivations
3 entriesAntonyms
1 entriessimilar
5 entriesSample sentences
13 total sentences available.
The word "the" is optional in this sentence.
Source: tatoeba (792608)
It isn't optional.
Source: tatoeba (2248744)
Being challenged in life is inevitable, being defeated is optional.
Source: tatoeba (2394406)
Showing 4 of 13 available sentences.